Liquid crystal orientation control layer method and apparatus fo

Details Liquid crystal orientation control layer method and apparatus fo Liquid crystal orientation control layer method and apparatus fo

1995-01-30

1996-12-24

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

G02F 11337

Patent

active

055878229

ABSTRACT:
An orientation layer for orientating liquid crystal uniformly, a method and apparatus for manufacturing the same, and a method for manufacturing a mask in the manufacturing apparatus has advantages in that, static electricity is not generated by ablating the coated polyimide using the mask having a hemicircular microlens array for focusing the parallel beams of an excimer laser into striped beams, so that a static-sensitive device is not damaged. Also, since the pulse wave having a short wavelength is used as a light source, the manufacturing process is fast, thereby improving productivity. Further, the same manufacturing process is repeatedly performed on a substrate without limitation in the substrate size, making the process applicable to very large substrates. In addition, since the hemicircular microlens of a mask can be variably designed and manufactured, the depth and width of grooves of the orientation layer can be easily adjusted. Also, when manufacturing the orientation layer by tilting the substrate or overlaying polyimide on the manufactured orientation layer, the depth and width of the grooves can be easily controlled.

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